On 3/3/08, devs-request@xwiki.org <devs-request@xwiki.org> wrote:

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Today's Topics:

  1. Re: Building Xwiki core (Asiri Rathnayake)

----------------------------------------------------------------------

Message: 1
Date: Tue, 4 Mar 2008 01:43:58 +0530
From: "Asiri Rathnayake" <asiri.rathnayake@gmail.com>
Subject: Re: [xwiki-devs] Building Xwiki core
To: "XWiki Developers" <devs@xwiki.org>
Message-ID:
       <9fd36c290803031213r60305c48qbc2c0e5996b402d1@mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"

Hi,

Did you check whether JAVA_HOME is available in dos prompt as well ? Perhaps
you should try "set JAVA_HOME=C:\abc\Java\jdk1.5.0_14" prior to running "mvn
install" ?

- Asiri

On Tue, Mar 4, 2008 at 1:16 AM, Kamna Jain <kammy.scorpi@gmail.com> wrote:

> Hello,
>
> I am trying to learn how to build XWiki from the source.
>
> I checked out the source code in Eclipse 3.3 using Sunclipse and then I
> created a Java Project out of the XWiki Core/src folder.
> Now, I am trying to follow directions from the links -
> http://dev.xwiki.org/xwiki/bin/view/Community/Building
> I downloaded maven-2.1-SNAPSHOT and create dthe .m2/settings.xml.
> I also created M2_HOME varibale and set the PATH variable with M2_HOME.
> Set the JAVA_HOME to the jdk installed on my system.
>
> But, when I try "mvn install" from the directory where I have the
> XWiki/src checked out (Eclipse workspace), it says that JAVA_HOME is not set
> and gives me the following error:
>
> ERROR: JAVA_HOME not found in your environment.
> Please set the JAVA_HOME variable in your environment to match the
> location of your Java installation
>
> I have JAVA_HOME set and it shows up in the list of env. variables in my
> system like this:
>
> JAVA_HOME = C:\abc\Java\jdk1.5.0_14
> PATH = C:\WINDOWS;C:\WINDOWS\System32;C:\Program
> Files\Subversion\bin;C:\Program Files\TortoiseSVN\bin;C:\Program Files\Quest
> Software\PuTTY\;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\Quest
> Software\PuTTY\;%JAVA_HOME%\bin;%M2_HOME%\bin
>
> Could you please tell me what I am doing wrong and what I should change to
> get this right!
>
> Also, am I on the irght path when I I say I am trying to buildthe src of
> XWiki -core? and nothing else! As an eclipse project, it is all compiled and
> does not show errors implying that it has all the files that it needs for it
> to complie.
>
>
> Thanks
>
>
>
>
>
>
> On 3/3/08, devs-request@xwiki.org <devs-request@xwiki.org> wrote:
> >
> > Send devs mailing list submissions to
> >        devs@xwiki.org
> >
> > To subscribe or unsubscribe via the World Wide Web, visit
> >        http://lists.xwiki.org/mailman/listinfo/devs
> > or, via email, send a message with subject or body 'help' to
> >        devs-request@xwiki.org
> >
> > You can reach the person managing the list at
> >        devs-owner@xwiki.org
> >
> > When replying, please edit your Subject line so it is more specific
> > than "Re: Contents of devs digest..."
> >
> >
> > Today's Topics:
> >
> >   1. Re: Profiling: Why do attachments require so      much    memory
> >      (Sergiu Dumitriu)
> >   2. [VOTE] Change the attachment archive storage (Sergiu Dumitriu)
> >   3. Re: [VOTE] Change the attachment archive storage (Vincent Massol)
> >   4. Re: [VOTE] Change the attachment archive storage (Sergiu Dumitriu)
> >   5. [Proposal] XE 1.3 final release date (Vincent Massol)
> >   6. Re: Xwiki Enterprise 1.3 RC1 release date? (Vincent Massol)
> >   7. Re: About GSoC 2008 (Asiri Rathnayake)
> >   8. Re: Xwiki Enterprise 1.3 RC1 release date? (Sergiu Dumitriu)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Mon, 03 Mar 2008 17:28:21 +0100
> > From: Sergiu Dumitriu <sergiu@xwiki.com>
> > Subject: Re: [xwiki-devs] Profiling: Why do attachments require so
> >        much    memory
> > To: XWiki Developers <devs@xwiki.org>
> > Message-ID: <47CC2725.40707@xwiki.com>
> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >
> > Vincent Massol wrote:
> > > Nice work Sergiu. We should transform this into a jira issue to not
> > > forget it.
> > >
> >
> > We should vote for it first.
> >
> > > One other idea: store attachments on the file system and not in the
> > DB.
> > >
> > > Thanks
> > > -Vincent
> > >
> > > On Feb 27, 2008, at 3:48 PM, Sergiu Dumitriu wrote:
> > >
> > >> Hi devs,
> > >>
> > >> Last night I checked what happens when uploading a file, and why does
> > >> that action require huge amounts of memory.
> > >>
> > >> So, whenever uploading a file, there are several places where the
> > file
> > >> content is loaded into memory:
> > >> - as an XWikiAttachment as byte[] ~= filesize
> > >> - as an XWikiAttachmentArchive as Base64 encoded string ~=
> > >> 2*4*filesize
> > >> - as hibernate tokens that are sent to the database, clones of the
> > >> XWikiAttachment and XWikiAttachmentArchive data ~= 9*filesize
> > >> - as Cached attachments and attachment archive, clones of the same 2
> > >> objects ~= 9*filesize
> > >>
> > >> Total: ~27*filesize bytes in memory.
> > >>
> > >> So, out of a 10M file, we get at least 270M of needed memory.
> > >>
> > >> Worse, if this is not the first version of the attachment, then the
> > >> complete attachment history is loaded in memory, so add another
> > >> 24*versionsize*versions of memory needed during upload.
> > >>
> > >> After the upload is done, most of these are cleared, only the cached
> > >> objects will remain in memory.
> > >>
> > >> However, a problem still remains with the cache. It is a LRU cache
> > >> with
> > >> a fixed capacity, so even if the memory is full, the cached
> > >> attachments
> > >> will not be released.
> > >>
> > >> Things we can improve:
> > >> - Make the cache use References. This will allow cached attachments
> > to
> > >> be removed from memory when there's a need for more memory
> > >> - Do a better attachment archive system. I'm not sure it is a good
> > >> idea
> > >> to have diff-based versioning of attachments. In theory, it saves
> > >> space
> > >> when versions are much alike, but it does not really work in practice
> > >> because it does a line-diff, and a base64 encoded string does not
> > have
> > >> newlines. What's more, the space gain would be efficient when there
> > >> are
> > >> many versions, as one version alone takes 4 times more space than a
> > >> binary dump of the content.
> > >>
> > >> Suppose we switch to a "one version per table row" for attachment
> > >> history, with direct binary dump, then the memory needed for
> > uploading
> > >> would be 6*filesize, which is much less.
> >
> >
> > --
> > Sergiu Dumitriu
> > http://purl.org/net/sergiu/
> >
> >
> > ------------------------------
> >
> > Message: 2
> > Date: Mon, 03 Mar 2008 17:34:07 +0100
> > From: Sergiu Dumitriu <sergiu@xwiki.com>
> > Subject: [xwiki-devs] [VOTE] Change the attachment archive storage
> > To: XWiki Developers <devs@xwiki.org>
> > Message-ID: <47CC287F.9090609@xwiki.com>
> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >
> > Hi devs,
> >
> > As detailed in another mail
> > (http://lists.xwiki.org/pipermail/devs/2008-February/005344.html), the
> > current attachment archive mechanism is very inefficient. We should
> > write a new one, which stores attachment versions as plain binary data,
> > and see if the current core is pluggable enough to allow the old
> > mechanism to be preserved as a plugin, and possibly define other storage
> > mechanisms, like a filesystem based one.
> >
> > Artem, do you think you can help, as this is something related to what
> > you've been working on?
> > --
> > Sergiu Dumitriu
> > http://purl.org/net/sergiu/
> >
> >
> > ------------------------------
> >
> > Message: 3
> > Date: Mon, 3 Mar 2008 17:40:39 +0100
> > From: Vincent Massol <vincent@massol.net>
> > Subject: Re: [xwiki-devs] [VOTE] Change the attachment archive storage
> > To: XWiki Developers <devs@xwiki.org>
> > Message-ID: <D5354D29-6FB9-41CB-A450-C77DE4E9BB54@massol.net>
> > Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
> >
> >
> > On Mar 3, 2008, at 5:34 PM, Sergiu Dumitriu wrote:
> >
> > > Hi devs,
> > >
> > > As detailed in another mail
> > > (http://lists.xwiki.org/pipermail/devs/2008-February/005344.html), the
> > > current attachment archive mechanism is very inefficient. We should
> > > write a new one, which stores attachment versions as plain binary
> > > data,
> > > and see if the current core is pluggable enough to allow the old
> > > mechanism to be preserved as a plugin, and possibly define other
> > > storage
> > > mechanisms, like a filesystem based one.
> > >
> > > Artem, do you think you can help, as this is something related to what
> > > you've been working on?
> >
> > My only worry is that last time we changed the database format we
> > spent several months stabilizing it... since there were lots of
> > problems. I'm not even sure we've finished stabilizing it fully...
> >
> > So is there any chance that this would be simpler? :)
> >
> > Thanks
> > -Vincent
> >
> >
> >
> > ------------------------------
> >
> > Message: 4
> > Date: Mon, 03 Mar 2008 18:00:12 +0100
> > From: Sergiu Dumitriu <sergiu@xwiki.com>
> > Subject: Re: [xwiki-devs] [VOTE] Change the attachment archive storage
> > To: XWiki Developers <devs@xwiki.org>
> > Message-ID: <47CC2E9C.8070404@xwiki.com>
> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >
> > Vincent Massol wrote:
> > > On Mar 3, 2008, at 5:34 PM, Sergiu Dumitriu wrote:
> > >
> > >> Hi devs,
> > >>
> > >> As detailed in another mail
> > >> (http://lists.xwiki.org/pipermail/devs/2008-February/005344.html),
> > the
> > >> current attachment archive mechanism is very inefficient. We should
> > >> write a new one, which stores attachment versions as plain binary
> > >> data,
> > >> and see if the current core is pluggable enough to allow the old
> > >> mechanism to be preserved as a plugin, and possibly define other
> > >> storage
> > >> mechanisms, like a filesystem based one.
> > >>
> > >> Artem, do you think you can help, as this is something related to
> > what
> > >> you've been working on?
> > >
> > > My only worry is that last time we changed the database format we
> > > spent several months stabilizing it... since there were lots of
> > > problems. I'm not even sure we've finished stabilizing it fully...
> > >
> > > So is there any chance that this would be simpler? :)
> > >
> > > Thanks
> > > -Vincent
> > >
> >
> > It should be simpler, as attachments are just binary blobs, while the
> > XML history is much too fragile.
> > --
> > Sergiu Dumitriu
> > http://purl.org/net/sergiu/
> >
> >
> > ------------------------------
> >
> > Message: 5
> > Date: Mon, 3 Mar 2008 18:18:18 +0100
> > From: Vincent Massol <vincent@massol.net>
> > Subject: [xwiki-devs] [Proposal] XE 1.3 final release date
> > To: XWiki Developers <devs@xwiki.org>
> > Message-ID: <FE2B2F15-5128-47CC-90B7-CAF96398BADE@massol.net>
> > Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
> >
> > Hi,
> >
> > I'm proposing to revise the 1.3 Final release date to this Friday 7th
> > of March 2007.
> >
> > We've already fixed the major issues raised in 1.3RC1 but I think we
> > need a few days to let people report any issues they might have had
> > with 1.3RC1.
> >
> > Let me know what you think and especially if you don't agree. I'm
> > proposing to do the release.
> >
> > Thanks
> > -Vincent
> >
> >
> >
> > ------------------------------
> >
> > Message: 6
> > Date: Mon, 3 Mar 2008 18:23:39 +0100
> > From: Vincent Massol <vincent@massol.net>
> > Subject: Re: [xwiki-devs] Xwiki Enterprise 1.3 RC1 release date?
> > To: XWiki Developers <devs@xwiki.org>
> > Message-ID: <161441E7-DC86-48ED-A91A-A8F143A2FC4B@massol.net>
> > Content-Type: text/plain; charset="us-ascii"
> >
> >
> > On Feb 27, 2008, at 3:17 PM, Everitt, Glenn wrote:
> >
> > > Is the plan to provide a  xwiki-enterprise-web1-1.3-rc1.war file on
> > > the Xwiki Download page?  When do you think this would be
> > > available?  Would it be better to pull it directly from svn?  If I
> > > get it from svn how is the RC1 release marked?
> > >
> > It's been released a few days ago...
> > > I noticed that you were looking at using GWT Html editor.  Doesn't
> > > GWT Html editor just wrap the FCKEditor?  What is the advantage of
> > > using GWT Html Editor instead of just using the FCKEditor?
> > >
> > I have no idea. Anyone knows?
> >
> > Thanks
> > -Vincent
> >
> > -------------- next part --------------
> > An HTML attachment was scrubbed...
> > URL:
> > http://lists.xwiki.org/pipermail/devs/attachments/20080303/66fe6d6b/attachment-0001.htm
> >
> > ------------------------------
> >
> > Message: 7
> > Date: Mon, 3 Mar 2008 22:57:55 +0530
> > From: "Asiri Rathnayake" <asiri.rathnayake@gmail.com>
> > Subject: Re: [xwiki-devs] About GSoC 2008
> > To: "XWiki Developers" <devs@xwiki.org>
> > Message-ID:
> >        <9fd36c290803030927g202b5c93l4e104d1744f4e8ef@mail.gmail.com>
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> > Hi Vincent,
> >
> > On Mon, Mar 3, 2008 at 6:23 PM, Vincent Massol <vincent@massol.net>
> > wrote:
> >
> > >
> > > On Mar 2, 2008, at 7:03 AM, Asiri Rathnayake wrote:
> > >
> > > Hi,
> > >
> > > On Sat, Mar 1, 2008 at 7:54 PM, Vincent Massol <vincent@massol.net>
> > wrote:
> > >
> > > >
> > > > On Mar 1, 2008, at 3:12 PM, Asiri Rathnayake wrote:
> > > >
> > > > Hi All,
> > > >
> > > > Sorry if this is the wrong place / time to ask this question.
> > > >
> > > > I wanted to know whether XWiki will participate in GSoC 2008<
> > http://code.google.com/soc/2008/>.
> > > > ( care to hint some project ideas ? )
> > > >
> > > >
> > > > answer is yes!
> > > >
> > > > We all need to think about cool project ideas we want to achieve. We
> > > > could start by reviewing the leftovers from last year + add some new
> > ones.
> > > >
> > >
> > > Do we have syntax highlighting in XEclipse ? I think this is one of
> > the
> > > leftovers. But I'm not sure whether itself alone be enough for a
> > summer
> > > project.
> > >
> > >
> > > No we don't have it AFAIK. However I don't think it's complex to do
> > since
> > > there's a velocity editor plugin. It should simply be a matter of
> > using it.
> > > As you say this sounds like something a bit too small. However if you
> > have
> > > other large ideas that you could add with this, then it's worth
> > proposing
> > > them on http://dev.xwiki.org/xwiki/bin/view/GoogleSummerOfCode/
> > >
> >
> > Once i thought it would be nice to have off-line rendering of pages (no
> > need
> > to be connected to view the results) in XEclipse (is this possible ?).
> > But
> > now I'm wondering if it's worth putting another GSoC project on XEclipse
> > (?), since fabio seems to be doing a great great great job on XEclipse
> > ....
> >
> > I personally would like to get familiar in core xwiki development (in
> > contrast to add-on development), but i got no idea that would suite a
> > summer
> > project yet :(
> >
> > Hope you (core developers) will put up something cool (and challenging)
> > soon
> > :)
> >
> > Thanks a lot.
> >
> > - Asiri
> >
> >
> > >
> > > Thanks
> > > -Vincent
> > >
> > > Thanks.
> > >
> > > - Asiri
> > >
> > >
> > > > If anyone has cool ideas please send them on this list. I'll
> > organize a
> > > > new space for collating them on xwiki.org in a few days.
> > > >
> > > > Thanks
> > > > -Vincent
> > > >
> > >
> > > _______________________________________________
> > > devs mailing list
> > > devs@xwiki.org
> > > http://lists.xwiki.org/mailman/listinfo/devs
> > >
> > >
> > -------------- next part --------------
> > An HTML attachment was scrubbed...
> > URL:
> > http://lists.xwiki.org/pipermail/devs/attachments/20080303/a607c282/attachment-0001.htm
> >
> > ------------------------------
> >
> > Message: 8
> > Date: Mon, 03 Mar 2008 18:37:24 +0100
> > From: Sergiu Dumitriu <sergiu@xwiki.com>
> > Subject: Re: [xwiki-devs] Xwiki Enterprise 1.3 RC1 release date?
> > To: XWiki Developers <devs@xwiki.org>
> > Message-ID: <47CC3754.3090906@xwiki.com>
> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >
> > Vincent Massol wrote:
> > >
> > > On Feb 27, 2008, at 3:17 PM, Everitt, Glenn wrote:
> > >
> > >> Is the plan to provide a  xwiki-enterprise-web1-1.3-rc1.war file on
> > >> the Xwiki Download page?  When do you think this would be available?
> > >> Would it be better to pull it directly from svn?  If I get it from
> > svn
> > >> how is the RC1 release marked?
> > >>
> > > It's been released a few days ago...
> > >>
> > >> I noticed that you were looking at using GWT Html editor.  Doesn't
> > GWT
> > >> Html editor just wrap the FCKEditor?  What is the advantage of using
> > >> GWT Html Editor instead of just using the FCKEditor?
> > >>
> > > I have no idea. Anyone knows?
> >
> > We're not planning on using an existing GWT editor, but to write our
> > own, so that it is tightly integrated with XWiki. And since it will be
> > written in java, we won't have the current problem with different
> > look/behavior between view, edit in wiki and edit in wysiwyg.
> >
> > And FCK is not suited for XWiki, as it is a HTML editor, and we need a
> > wiki editor.
> > --
> > Sergiu Dumitriu
> > http://purl.org/net/sergiu/
> >
> >
> > ------------------------------
> >
> > _______________________________________________
> > devs mailing list
> > devs@xwiki.org
> > http://lists.xwiki.org/mailman/listinfo/devs
> >
> >
> > End of devs Digest, Vol 9, Issue 4
> > **********************************
> >
>
>
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